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Re: [OM] Macro Mirror Lenses

Subject: Re: [OM] Macro Mirror Lenses
From: Denton Taylor <denton@xxxxxxxx>
Date: Sat, 12 Sep 1998 13:50:35 -0400
At 12:04 PM 9/12/98 -0700, you wrote:
>Will you be using the cross polarizing filter with the T-10 flash?  If so,
>then a reflective surface and different polarizer settings would be
>interesting comparisons.  Also, given the fairly large power difference
>among the three flashes, the smallest functional aperture would be a useful
>bit.  I'd expect a T-28 to work at a much smaller F/ratio than the T-8 for a
>given lens/distance combination.  The question is "how much"?
>John P

Unfortunately I don't have the pol. 

An old piece of lit I have shows gn in feet of 26, 33, and 72 for the T8,
T10, and T28 twin respectively. I think that works out to about 1-1/2 stops
from best to worse. I wonder if that is enough to make a difference when
working close in. We'll see...



Regards,


Denton Taylor
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Photogallery at www.dentontaylor.com

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